Find the LCM of the list of numbers.56, 63, 72
A. 72
B. 3528
C. 504
D. 28,224
Answer: C
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Simplify the expression.(-6x5y)(8x3y3)
A. -48x15y3 B. 48x15y3 C. 48x8y2 D. -48x8y4
Solve the problem.Mieko, who is 1.67 m tall, wishes to find the height of a tree. She walks 22.93 m from the base of the tree along the shadow of the tree until her head is in a position where the tip of her shadow exactly overlaps the end of the tree top's shadow. She is now 7.87 m from the end of the shadows. How tall is the tree? Round to the nearest hundredth.
A. 4.87 m B. 6.54 m C. 2.54 m D. 0.57 m
The scores on a 30-point multiple-choice exam are given in the following frequency table:
The range on the exam is
A. 7. B. 10. C. 9. D. 8. E. none of these
Solve the equation by factoring.x2 - x = 72
A. {-8, -9} B. {8, 9} C. {8, -9} D. {-8, 9}